import java.util.Scanner;


class FloydTriangle {
    public static void main(String[] args) {
          Scanner sc = new Scanner(System.in);
          System.out.println("Enter the number of rows which you want in your Floyd Triangle: ");
          int r = sc.nextInt(), n = 0;
          sc.close();
          for(int i=0; i < r; i++) {
              for(int j=0; j <= i; j++) {
                  System.out.print(++n + " ");
              }
              System.out.println();
          }
      }
}
